I am happy with this purchase. I find it to be a good quality product and I'm happy that I purchased it. It is not too loud like some air purifiers can be. The only thing that I can say about this product that is for me a con, is that the light on the machine is very bright. The button to put it into night mode helps but it does not dim the main light that stays on. If you have problems with lights on when you sleep you might have to do what I do and put a something over that light to keep it from bothering you too. Otherwise, I would HIGHLY recommend this product.